Plastic plumbing parts are used to construct the majority of modern plumbing systems. Plastic pipe fittings are held together with cement-like glue. Repairs or complete plastic pipe replacement may necessitate removing the fittings. Heat can be used to remove these fixtures. To loosen the glue without melting the plastic, you must use the correct amount of heat.

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Step 1

If feasible, place a small piece of 2-inch by 4-inch board under the pipe near the fitting. This will aid in heating the pipe’s and fitting’s whole circumference. It will also make it easier to hold the pipe with pliers.

Step 2

Using a hair dryer on the hottest setting, heat the fitting and pipe. Hold the hair drier 3 or 4 inches away from the fitting and the pipe as you move it over the region. For five to six minutes, heat the pipe and fitting.

Step 3

With one pair of slip-joint pliers, hold the pipe while turning the fitting with the other pair. Pull the fitting away from the pipe as you turn it. If the fitting still won’t come off, heat the area with a hair dryer for another four to five minutes before trying again. Rep the procedure until the fitting is no longer attached.


Plastic fittings and adhesive are commonly used to link CPVC pipes, however, if that isn’t possible, plastic compression fittings can be used instead. The fittings are compatible with both CPVC and copper pipes and can be used to connect them. On plastic tubing, you can use either a compression valve; metal compression fittings, such as those found on sink and toilet shutoff valves, which function just as well on CPVC as they do on copper.

Plastic Pipe Fittings: How to Use Them

The pipe should be cut and bevelled.

Use a tubing cutter to make a clean, square cut in the CPVC pipe where you wish to place the compression fitting. With a file, bevel the pipe’s edges. Alternately, use a hacksaw to make the cut. If you’re going to use a hacksaw, make sure the edges are perfectly prepared. They should be absolutely devoid of plastic fragments, in addition to being bevelled. A chop saw can also be used to cut CPVC pipe.

Place the pipe inside the fitting.

Dishwashing liquid should be used to lubricate the pipe’s end. Loosen the compression fitting’s nut and slide the fitting onto the pipe until the pipe’s end is totally encased. When you push the fitting all the way in, it has a lock ring that grabs the pipe.

Tighten Down The Fitting

Hand-tighten the compression nut. It’s made to seal without the use of a wrench. A few drops of water accumulating around the edge of a plastic compression fitting does not necessarily indicate that it isn’t tight. Small leaks normally go away within a day or two. If the fitting sprays water and you can’t tighten it enough by hand to stop it, use adjustable pliers to tighten it.

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